TMC 2312 Bronze

The TMC 2312 Bronze is a barbed terrestrial/hopper hook available in sizes #6-16. It's built around a shank two sizes longer than standard — the usual choice for longer-bodied insects like stoneflies, hoppers and larger caddis pupae, paired with fine wire, one step lighter than standard, which reduces the fly's weight and helps dry patterns sit high on the surface film. Tyers reach for it most often when working on general purpose. The sections below break down what each specification actually means at the vice, which patterns suit it, and which hooks from other manufacturers you can substitute when it's out of stock.

Shank length (2XL). This hook has a shank two sizes longer than standard — the usual choice for longer-bodied insects like stoneflies, hoppers and larger caddis pupae.

Wire strength (1XF). It's made from fine wire, one step lighter than standard, which reduces the fly's weight and helps dry patterns sit high on the surface film.

Bend and gape (Wide). The 2312 Bronze uses a wide gape, improving hook-up rates and leaving clearance for a bulkier dressed body.

Eye type (Straight). It's finished with a straight (ring) eye, the most versatile option — it keeps the fly tracking in line with the leader, which suits nymphs and streamers.

Barbed. This is a barbed hook. Many competition rules and an increasing number of catch-and-release fisheries require barbless, so check local regulations — the barb can be pinched down with flat-jawed pliers before you dress the hook.

What size TMC 2312 Bronze should you use?

The 2312 Bronze runs from size 6 through 16. The middle of this range covers most everyday trout patterns and is the sensible place to start if you're stocking a single size. If you're buying this hook for the first time, the mid-range sizes see the most use at the vice, and tracking exactly which sizes you own is where an inventory app earns its keep — it's the detail most tyers forget at the fly shop counter.

What can you substitute for the TMC 2312 Bronze?

If the TMC 2312 Bronze is out of stock, the closest match in the database is the Fulling Mill FM-6060 Black. When substituting, the specifications that matter most are gape and shank length — these determine whether the finished fly keeps its intended proportions. Wire strength is the next consideration, since it changes how the fly sits in the water: a heavier wire will sink a pattern that was designed to float. Eye type is usually the most forgiving difference, though switching to or from a jig eye changes how the hook rides entirely.

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